It is probably: argument (statement)-argument (why do you say this)-reaffirming argument.
Second, narrative: crowned (small, concise, beautiful and broad)-streaked pork (rich in content, appropriate in details and turbulent in plot)-leopard tail (short and pithy, revealing the theme).
Narrative methods: time series narrative (narrative according to the development of events), interpolation (inserting some plots in the middle) and flashback (writing the results first, then writing the reasons).